Waves 1: Topic Checklist 1 Flashcards
Describe the difference between longitudinal and transverse waves
- Longitudinal waves vibrate parallel to the
wave direction - Transverse waves vibrate perpendicular to
the wave direction
Give examples of transverse waves
Water waves
Vibrations
Electromagnetic waves
Give examples of longitudinal waves
Sound waves
Ultrasound
Waves….
…Carry energy without transferring matter
Describe amplitude
Amplitude of a wave is the maximum displacement of a point on a wave away from its undisturbed position.
Describe wavelength
Wavelength is the distance from a point on one wave to the equivalent point on the adjacent wave.
Describe frequency
Frequency of a wave is the number of waves passing a point each second.
Describe period
Period is the time for one wave to pass 🡪 period (seconds)=1/frequency (Hz)
Calculate wave speed (how fast the wave moves)
wave speed (m/s) = frequency(Hz) × wavelength(m)
Describe a method to measure the speed of sound waves in air
Wave speed = frequency x wavelength
What’s the range of frequencies that an average young person can hear
20 - 20,000 Hertz (Hz)
What are the 5 properties of waves?
Amplitude, frequency, wavelength, period, and speed
what is the effect of reflection on the properties of a wave
Reflection doesn’t effect any properties of waves
observing a wave on a string
page- 207
explain what happens to waves between two materials
They can be reflected, absorbed or transmitted at the boundary.
